Question

question 4 (1 point)
(02.03 lc)
what type of orbital is spherical in shape?
a s orbital
b p orbital
c d orbital
d f orbital
question 5 (1 point)
(02.03 lc)
what type of orbital is dumbbell - shaped?
a s orbital
b p orbital
c d orbital
d f orbital
question 6 (1 point)
(02.03 mc)
calcium (ca) has an atomic number of 20. what is calciums electron configuration?
a 1s²1p⁶1d¹⁰1f²
b 1s²1p⁶2s²2p⁶3s²3p²
c 1s²2s²2p⁶3s²3p⁶4s²
d 1s²2s²2p⁶3s²3p⁶3d²

Explanation:

• For Question 4: In atomic - orbital theory, s orbitals are spherical in shape.
• For Question 5: p orbitals have a dumbbell - shape.
• For Question 6: Calcium (Ca) with an atomic number of 20 has 20 electrons. Filling the orbitals according to the Aufbau principle (filling lower - energy orbitals first), the electron configuration is \(1s^{2}2s^{2}2p^{6}3s^{2}3p^{6}4s^{2}\).

Answer:

Question 4: A. s orbital
Question 5: B. p orbital
Question 6: C. \(1s^{2}2s^{2}2p^{6}3s^{2}3p^{6}4s^{2}\)